JPS5590147A - Stereo demodulator on fm-fm system - Google Patents
Stereo demodulator on fm-fm systemInfo
- Publication number
- JPS5590147A JPS5590147A JP16004778A JP16004778A JPS5590147A JP S5590147 A JPS5590147 A JP S5590147A JP 16004778 A JP16004778 A JP 16004778A JP 16004778 A JP16004778 A JP 16004778A JP S5590147 A JPS5590147 A JP S5590147A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- subcarrier
- line
- beat signal
- converted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Television Receiver Circuits (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
PURPOSE:To prevent effectively beat frequency disturbance by converting a subcarrier led from another line into a frequency generating no beat signal and then by frequency-mixing this subcarrier into a carrier. CONSTITUTION:A main carrier from one line l1 between lines l1 and l2 of two systems and a subcarrier from the other line l2 are frequency-converted by frequency converter U3 into frequencies causing no beat signal and then frequency-mixed together by frequency mixer U4. Consequently, no beat signal is generated between the frequency-converted subcarrier and another subcarrier included in the main carrier in the form of being FM-modulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53160047A JPS6053992B2 (en) | 1978-12-27 | 1978-12-27 | FM↓-FM stereo demodulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53160047A JPS6053992B2 (en) | 1978-12-27 | 1978-12-27 | FM↓-FM stereo demodulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5590147A true JPS5590147A (en) | 1980-07-08 |
| JPS6053992B2 JPS6053992B2 (en) | 1985-11-28 |
Family
ID=15706764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53160047A Expired JPS6053992B2 (en) | 1978-12-27 | 1978-12-27 | FM↓-FM stereo demodulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053992B2 (en) |
-
1978
- 1978-12-27 JP JP53160047A patent/JPS6053992B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6053992B2 (en) | 1985-11-28 |
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